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    Re: The ghetto mod thread

    It was not a complicated design, but I needed to connect a connector with many pins... on the edge of the board... and having the PTHs would short everything.

    Is there a grid between the (tiny) pads? What is the point of that?
    "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
    -David VanHorn

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      Re: The ghetto mod thread

      beats the heck out of me, perhaps to let people to choose using the grid horizontal or vertical. Of course now someone needs to cut all in the orthogonal direction...

      Comment


        Re: The ghetto mod thread

        Do I win the award for the most ghetto thing? hehe

        Anyways, this is one of my PS1s I fixed a few days ago.

        Extended the laser ribbon cable because the drive I had wasn't for the model I had to fix.

        It's a SCPH-5552, about the only ones beside the 7002s to require a long laser ribbon cable. My other two, a 1002 and a 9002, use normal cables. (the 1002 has a slim PS1 laser for example, and these have the right size ribbon)
        Attached Files
        Main rig:
        Gigabyte B75M-D3H
        Core i5-3470 3.60GHz
        Gigabyte Geforce GTX650 1GB GDDR5
        16GB DDR3-1600
        Samsung SH-224AB DVD-RW
        FSP Bluestorm II 500W (recapped)
        120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
        Delux MG760 case

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          Re: The ghetto mod thread

          holy bell wire!
          Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

          My computer doubles as a space heater.

          Permanently Retired Systems:
          RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
          Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


          Kooky and Kool Systems
          - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
          - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
          - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
          - Main Workstation - Fully operational!

          sigpic

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            Re: The ghetto mod thread

            Looks like a spaghetti monster is lurking in there

            I want to see how ghetto the eye pattern from the laser pickup is with all that!
            Last edited by Agent24; 12-24-2018, 04:02 PM.
            "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
            -David VanHorn

            Comment


              Re: The ghetto mod thread

              Originally posted by Agent24 View Post
              Looks like a spaghetti monster is lurking in there

              I want to see how ghetto the eye pattern from the laser pickup is with all that!
              It actually works fine

              I tested Gran Turismo 2 and Brian Lara Cricket on it and both loaded fine.
              Main rig:
              Gigabyte B75M-D3H
              Core i5-3470 3.60GHz
              Gigabyte Geforce GTX650 1GB GDDR5
              16GB DDR3-1600
              Samsung SH-224AB DVD-RW
              FSP Bluestorm II 500W (recapped)
              120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
              Delux MG760 case

              Comment


                Re: The ghetto mod thread

                Originally posted by Dan81 View Post
                It actually works fine

                I tested Gran Turismo 2
                I like!
                ASRock B550 PG Velocita

                Ryzen 9 "Vermeer" 5900X

                16 GB AData XPG Spectrix D41

                Sapphire Nitro+ Radeon RX 6750 XT

                eVGA Supernova G3 750W

                Western Digital Black SN850 1TB NVMe SSD

                Alienware AW3423DWF OLED




                "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo

                "There's nothing more unattractive than a chick smoking a cigarette" -Topcat

                "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat

                "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

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                  Re: The ghetto mod thread

                  Originally posted by RJARRRPCGP View Post
                  I like!
                  Strikin' again with another ghetto mod.

                  abit IP35 Pro mobo - replaced one Winbond chip that was bad near the RAM slots. This however didn't change the fact that it would still give error 8.4 and not POST.

                  You can see the mod here Now it works fine (although that area gets really hot, but that's a design flaw, my older IP35-E had the same hotness issue) although I keep getting 0x7E on Windows discs, but that's another story.
                  Attached Files
                  Last edited by Dan81; 12-26-2018, 05:52 AM.
                  Main rig:
                  Gigabyte B75M-D3H
                  Core i5-3470 3.60GHz
                  Gigabyte Geforce GTX650 1GB GDDR5
                  16GB DDR3-1600
                  Samsung SH-224AB DVD-RW
                  FSP Bluestorm II 500W (recapped)
                  120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
                  Delux MG760 case

                  Comment


                    Re: The ghetto mod thread

                    Originally posted by Dan81 View Post
                    Strikin' again with another ghetto mod.

                    abit IP35 Pro mobo - replaced one Winbond chip that was bad near the RAM slots. This however didn't change the fact that it would still give error 8.4 and not POST.

                    You can see the mod here Now it works fine (although that area gets really hot, but that's a design flaw, my older IP35-E had the same hotness issue) although I keep getting 0x7E on Windows discs, but that's another story.
                    BIOS UI reminds me of socket 462, LOL. (And early-2010s' Gigabyte AM3)
                    Last edited by RJARRRPCGP; 12-26-2018, 09:33 AM.
                    ASRock B550 PG Velocita

                    Ryzen 9 "Vermeer" 5900X

                    16 GB AData XPG Spectrix D41

                    Sapphire Nitro+ Radeon RX 6750 XT

                    eVGA Supernova G3 750W

                    Western Digital Black SN850 1TB NVMe SSD

                    Alienware AW3423DWF OLED




                    "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo

                    "There's nothing more unattractive than a chick smoking a cigarette" -Topcat

                    "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat

                    "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

                    Comment


                      Re: The ghetto mod thread

                      What winbond chip, what determined it was bad?

                      The picture looks like a bunch of replaced MOSFETs for the buck converter (which doesn't look that ghetto)?

                      Comment


                        Re: The ghetto mod thread

                        Winbond = probably SIO chip. Guess it wasn't generating some required system control signal.
                        "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                        -David VanHorn

                        Comment


                          Re: The ghetto mod thread

                          Originally posted by eccerr0r View Post
                          What winbond chip, what determined it was bad?

                          The picture looks like a bunch of replaced MOSFETs for the buck converter (which doesn't look that ghetto)?
                          An Winbond W83220G, which is a N-channel FET synchronous buck regulator controller.

                          I found out it was bad because before replacing it, the board kept freezing on POST (with the same bridge applied on FET, as without it the board simply won't boot and stop on error 8.4 which is DDR voltage)

                          Agent24- The SIO chip is fine.
                          Last edited by Dan81; 12-26-2018, 10:55 PM.
                          Main rig:
                          Gigabyte B75M-D3H
                          Core i5-3470 3.60GHz
                          Gigabyte Geforce GTX650 1GB GDDR5
                          16GB DDR3-1600
                          Samsung SH-224AB DVD-RW
                          FSP Bluestorm II 500W (recapped)
                          120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
                          Delux MG760 case

                          Comment


                            Re: The ghetto mod thread

                            Originally posted by Dan81 View Post
                            Do I win the award for the most ghetto thing? hehe

                            Anyways, this is one of my PS1s I fixed a few days ago.
                            Yes! I think you do.
                            That's a lot of effort/time for a PS1 drive, but I suppose why not, right?
                            I have a microwave LCD that needs a similar kind of fixing - the thermal cable separated from the LCD and LCD is no longer functional. I was thinking of doing something similar to you - just run lots of cables and make my own "pads" on the LCD end. Actually, that project has been sitting on my bench for 3 years now (talk about procrastination, lol). It's for a spare microwave, though. I'll post it when(ever) I get it done.

                            Originally posted by eccerr0r View Post
                            Yeah the radio shack copper ringed perfboard is pretty crappy (FR2 and not plated through).
                            Yeah, if you're talking about those pair of "square" boards they used to sell, I agree. They do a little better if you put flux on the board and then drag solder / tin all of the traces before soldering your components.

                            Originally posted by eccerr0r View Post
                            though I would really rather have a real PCB done, cutting veroboard or adding wire links is a major PITA.
                            Adding wire links is easy. Just save those extra-long capacitor and resistor leads you clip from new parts. I have a small plastic box full of them, collected from all the years of recapping PSUs with new caps and whatnot. So when I need to make a long trace/link, I just put one of those leads on the board and then drag solder across it. Ends up looking alright, usually.

                            Originally posted by eccerr0r View Post
                            Oh... and do notice I reused this board. I think I used this board for something else, then ripped all the components out and built this on it. I wonder when it comes time for me to disassemble this and build something else
                            LOL. I did that when I was building my senior project in college - decided to re-use an old Radio Shack square board that had a project before on it that I never finished (as it wasn't needed). The board was even snapped off in two pieces, as that's what I needed for that first project. So after clearing the old components out, I put back the two PCB pieces together and held them at the ends with hot glue. Then proceeded to build my new project on it. Here's a pic of that:
                            https://www.badcaps.net/forum/attach...1&d=1546065485

                            Originally posted by Dan81 View Post
                            I found out it was bad because before replacing it, the board kept freezing on POST (with the same bridge applied on FET, as without it the board simply won't boot and stop on error 8.4 which is DDR voltage)
                            That bridge you created essentially shorts Gate to Drain. I imagine this makes the MOSFET stuck On all the time. But it's not a good method, because you are back-feeding whatever chip is supposed to drive the Gate of that MOSFET. If the MOSFET is used just a simple pass-through switch with diode junction, then you're better off placing a jumper across Source-Drain junction. But if it's a buck regulator, this is certainly a bad idea (I see some inductors nearby, so check). In that case, you have to figure what's driving that buck regulator circuit and fix it, as that's likely the cause of the issue.
                            Attached Files
                            Last edited by momaka; 12-29-2018, 12:42 AM.

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                              Re: The ghetto mod thread

                              pretty nice, mine turn out pretty bad. I think this board was also a ripup and reuse, it is now a direct digital signal synthesizer.

                              Note that a lot of the times I don't cut things really short... in case I need to... rip up and reuse
                              Attached Files
                              Last edited by eccerr0r; 12-29-2018, 01:42 AM.

                              Comment


                                Re: The ghetto mod thread

                                Originally posted by momaka View Post
                                That bridge you created essentially shorts Gate to Drain. I imagine this makes the MOSFET stuck On all the time. But it's not a good method, because you are back-feeding whatever chip is supposed to drive the Gate of that MOSFET. If the MOSFET is used just a simple pass-through switch with diode junction, then you're better off placing a jumper across Source-Drain junction. But if it's a buck regulator, this is certainly a bad idea (I see some inductors nearby, so check). In that case, you have to figure what's driving that buck regulator circuit and fix it, as that's likely the cause of the issue.
                                I think it acts as a switch and the other one next to it is the one that is important.
                                Main rig:
                                Gigabyte B75M-D3H
                                Core i5-3470 3.60GHz
                                Gigabyte Geforce GTX650 1GB GDDR5
                                16GB DDR3-1600
                                Samsung SH-224AB DVD-RW
                                FSP Bluestorm II 500W (recapped)
                                120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
                                Delux MG760 case

                                Comment


                                  Re: The ghetto mod thread

                                  More nasty handywork... just because I didn't have a case for the DB9...
                                  Attached Files

                                  Comment


                                    Re: The ghetto mod thread

                                    lol
                                    so whats in it, a max202 or similar?

                                    Comment


                                      Re: The ghetto mod thread

                                      I think it might be a MUCU5 chip.
                                      "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                                      -David VanHorn

                                      Comment


                                        Re: The ghetto mod thread

                                        Originally posted by Agent24 View Post
                                        I think it might be a MUCU5 chip.
                                        Ewwww!!!!!

                                        Comment


                                          Re: The ghetto mod thread

                                          LOL, yes MUCU5 chip!

                                          Actually no ICs, just two NPN transistors, three resistors, and some wire.

                                          stj probably already got the answer because he saw a LOT of clues scattered everywhere, but the bonus question is: what is it used for (exactly).

                                          Hint is that it doesn't need any additional power source...

                                          In any case, perhaps I need to go over it one more time with a heat gun to smooth out the plastic...

                                          Oh, and no, I don't think this will be torn up and reused like other things
                                          Last edited by eccerr0r; 01-09-2019, 09:23 PM.

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